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香口－湖口滑脱断层沿上泥盆统五通组与中石炭统黄龙组之间的构造软弱面发育，产状大部分地段与地层产状一致，局部切层，总体走向北东，倾向北西，上盘为石炭－二叠系碳酸盐岩，下盘为志留－泥盆系碎屑岩，主要表现为上盘向北西滑动的正断层性质。断层主要形成于印支－燕山期，属大型隆拗构造背景上沉积盖层内部的层间滑脱。该断层早、中更新世曾有过微弱活动，但晚更新世以来无活动。
The chevron-hukou slip fault develops along the weakened surface between the Upper Devonian Wutong Formation and the Carboniferous Huanglong Formation. Most of the producing areas are consistent with the stratotypes, and are locally stratified and generally go to the north-east, , The upper plate is a Carboniferous-Permian carbonate rock, and the lower plate is the Silurian-Devonian clastic rock, which is mainly characterized by the normal fault that the upper plate slides northwest. The fault was mainly formed during the Indosinian-Yanshanian period and belongs to the inter-layer slippage within the sedimentary caprock on a large-scale uplift structural background. The fault had some weak activity in the early and middle Pleistocene, but no activity since Late Pleistocene.